In a game​ show, a contestant receives a prize that has a ​% chance of being worth ​$ and a ​% chance of being worth ​$. What is the expected value of winning a​ prize?

Answers

Answer 1

Answer:

112

Step-by-step explanation:

Expected Value is anticipated value, calculated by multiplying each of possible outcomes with their probability of occurrence.

If Price has = 60% chance of value 120 , & 40% chance of value 100

Expected Value = Sum ( Probability of outcome x Payoff )

E (X) = Σ [ xi . PR ( xi ) ] =  x1. Pr (x1) + x2 . Pr (x2)

= 0.6 (120) + 0.4 (100) = 72 + 40

= 112


Related Questions

What is the distance between tow points(-1,4)(3,2)

Answers

Answer:

2√5

Step-by-step explanation:

Distance = √(x1-x2)² + (y1-y2)²

Distance = √(-1-3)² + (4-2)²

Distance = 2√5

Answer:

[tex]\displaystyle d = 2\sqrt{5}[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Coordinates (x, y)

Algebra II

Distance Formula: [tex]\displaystyle d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

Step-by-step explanation:

Step 1: Define

Identify

Point (-1, 4)

Point (3, 2)

Step 2: Find distance d

Simply plug in the 2 coordinates into the distance formula to find distance d

Substitute in points [Distance Formula]:                                                         [tex]\displaystyle d = \sqrt{(3--1)^2+(2-4)^2}[/tex][√Radical] (Parenthesis) Subtract:                                                                   [tex]\displaystyle d = \sqrt{(4)^2+(-2)^2}[/tex][√Radical] Evaluate exponents:                                                                       [tex]\displaystyle d = \sqrt{16+4}[/tex][√Radical] Add:                                                                                                 [tex]\displaystyle d = \sqrt{20}[/tex][√Radical] Simplify:                                                                                           [tex]\displaystyle d = 2\sqrt{5}[/tex]

2
6
+
2
Area
HELP PLEASE

Answers

Answer:

X= 40

Step-by-step explanation:

if you compare the shapes, the X square is half of 6. so i added 6 and 3, then 2 and 3, then multiplied it, and the answer is 40.

please help meee!!!lol

Answers

Answer:

X represents the number of product so 3 cause you have 2 pastas and 1 cheese. The length represents the total cost. I think 3 would represent cost? I'm not totally sure on that one. Hope this helps!

Step-by-step explanation:

Please help mee!!! Will give brainliest!

Answers

It is B) 11 + 7 = 18,

Answer:

B.11+7=18

Step-by-step explanation:

its B because since its 7 days AFTER it means your going to have to add the 11 days plus this 7 days. Which would give you 18 days left till Susie's concert.

The equation of two circles are known, circle A’s equation is (x-3)^2+(y+4)^2=9 and circle B’s equation is (x+4)^2+(y+12)^2=8.
What is the radius of circle A and the radius of circle B.

Answers

Answer:

Step-by-step explanation:

The circles are written in standard form. The standard form squares the radius on the right hand side.

Circle A

radius = sqrt(9)

radius = 3

Circle B

radius = sqrt(8)

radius = sqrt(2 * 2 * 2)

radius = 2 sqrt(2)

Please helpppppp!!!!!!! Bots will be taken down .

Answers

step 1

so so s ososoosososososososososososososoosososososzosoosossoosososo

Step-by-step explanation:

The most important thing to remember is: SOH CAH TOA

sin(x) = opposite/hypotenuse

cos(x) = adjacent/hypotenuse

tan(x) = opposite/adjacent

So in #1:

We have the angle and hypotenuse and need to solve for the side opposite of the angle. This smells like a sine question.

sin(42)=x/25

this means that x=25sin(42). Plug that into the calculator and get: 16.73.

(Make sure you are in degrees mode)

For #2:

We are given the angle, the opposite side, and have to solve for the adjacent side. Looks like we need the tangent.

tan(75)=12/x

This means that x=12/tan(75). Calculator says: 3.22

For #3:

We have the angle, adjacent, and have to solve for the hypotenuse. This would be a cosine.

cos(36)=19/x

Solve for x: x=19/cos(36). Calculator says: 23.49

For #4:

We have the angle, adjacent side, and need the opposite side. This is another tangent problem.

tan(53)= x/7

Solving for x: x=7tan(53). Calculator says: 9.29

Need help fast will give brainliest! Please help me solves this equation!

Answers

Answer:

x = 15, y = 75

Step-by-step explanation:

hope it helps

i really need help with this!!! thank you i appreciate it

the volume of the square pyramid is ___ cubic meters

Answers

Base X Height
20X30=6000

Answer:

6000 m^3

Step-by-step explanation:

The basic formula for the area of a pyramid is 1/3 * b * h

where b is the base and h is the height.

The base is a square, so, we can find the area by squaring the side:

30^2 = 900.

Now, we can plug the values we have into the formula from above:

1/3 * 900 * 20

6000 m^3

help me please. i need this now​

Answers

Answer is H
Step by step exploration

Amanda has already run 14 miles on her own, and she expects to run 5 miles during each track practice. How many tracks would it take for Amanda to run 29 miles? heeeeeeeelllllppppp mmmmmeeeee!

Answers

Answer:

It will take Amanda 3 track practices to run 29 miles.

Step-by-step explanation:

29-14=15

15/3=5

or

14+5x=29

subtract 14 from both sides

5x=15

divide both sides by 3

x=3

Hope this helps. Brainliest will be appreciated.

A tepee is designed to have a diameter of 10 feet and the volume of 419 ft.³ at what height the support poles crossed with some of the tepee correctly?

Answers

Answer:

The required height is equal to 5.33 feet.

Step-by-step explanation:

Given that,

Diameter, d = 10 feet

Volume, V = 419 ft.³

We need to find the height the support poles crossed with some of the tepee correctly. Let the height is h.

The tepee is in the form of a  cylinder. The volume of a cylinder is given by :

[tex]V=\pi r^2 h\\\\h=\dfrac{V}{\pi r^2}\\\\h=\dfrac{419}{3.14\times 5^2}\\\\h=5.33\ ft[/tex]

So, the required height is equal to 5.33 feet.

The population P of bacteria in a culture after t minutes is given by the equation p=p0 (1.14)^t where P0 is the initail population. If the number of the bacteria starts at 400, how long will it take for he population to incfrease to 2000

Answers

Answer:

The time taken is 4.79 minutes.

Step-by-step explanation:

[tex]P = Po(1.4)^{t}[/tex]

initial Population, Po = 400

Final population, P = 2000

Let the time is t.

[tex]2000 = 400(1.4)^{t} \\5 = (1.4)^t\\log 5 = t log 1.4\\0.6989 = 0.146 t \\t = 4.79 minutes[/tex]

How fast is Spiderman going (in miles/hour)? *

Answers

Answer:

Prolly faster than the flash

Step-by-step explanation:

:)

It is suggested to be 200 miles per hour but it is 1.9 mach in the comics. It is suggested to be 200 miles per hour but it is 1.9 mach in the comics.

Find the lateral area. Round to the nearest thousandths.

Answers

Answer:

62.832

Step-by-step explanation:

Helpppppppp plssssss

Answers

Answer:

16

Step-by-step explanation:

one side is four the other is four 4x4 is 16

Answer:

8

Step-by-step explanation:

Since its 1/2 cm per cube, each side is 4 cubes, 4x1/2 = 2. 2x2x2 = 8

please help me with this question ​

Answers

Answer:

-3x^2+16x+64

Step-by-step explanation:

First, you need to find the area of both areas (the total area and the area of the unshaded part). Let's find the total area.

(x+8)(x+8)=x^2+16x+64

The total area is x^2+16x+64

(2x)(2x)=4x^2

The area of the unshaded part is 4x^2

Now we have to subtract to find the area of the shaded part.

x^2+16x+64-4x^2

-3x^2+16x+64

That is the answer

Hope this helped!! :D

A company sells cereal and the dimension of the box is listed below. How many cubic inches of cereal can the box below hold? (show your work or explain in words) *

Answers

Answer:

Hello! answer: 186

7 3/4 × 2 × 12 = 186

Hope that helps!

brainliest goes to whoever answers the question correctly also if you want more points answer my other questions

Answers

Answer:

D. All of the above

Step-by-step explanation:

All of those would reach higher than 300 when you go 4 to the right.

The correct answer is: D, all of the above


Please explain how to do #3

Answers

you answered correctly for part a. just simplify it. so for part a it would be x^4 + 8x^3 + 24x^2 + 32x + 16. repeat what you did in part a with part b (add & simplify). btw, the missing side in part c is 2x-x = x

a = 15 ; b =____________ ; c = 17

Answers

Answer:

16

Step-by-step explanation:

b=16

Following the pattern, we can assume that each term adds by 1. So 15+1 = 16.

If it cost 16.50 for 6 shirts how much would it cost for just one shirt?

Answers

Answer:

Each shirt would cost $2.75

Step-by-step explanation:

PLEASE HELP!!! 25 POINTS & WILL MARK BRAINLIEST

Answers

Answer:

It is answer A without a doubt

Step-by-step explanation:

Find the probability of this event. Enter the answer as a fraction in simplest form, as a decimal to the
nearest hundredth, and as a percent to the nearest whole number.
You choose a movie CD at random from a case containing 2 comedy CDs, 9 science fiction CDs, and
3 adventure CDs. The CD is not a comedy.
The probability of not picking a comedy from the case as a fraction is
The probability of not picking a comedy from the case as a decimal is
The probability of not picking a comedy from the case as a percent is
%.

Answers

Answer:

Fraction- 12/14 (6/7)

Decimal- 0.85 or 0.86 (depending if you want to round up)

Percent- 85%

Step-by-step explanation:

Add all of the CD's that arent comedy then put the total number of CD's below. And then take 12/14 and apply it as a decimal and percent and also simplify it if needed.

A jar contains 12 oatmeal cookies, 13 sugar cookies and 5 chocolate chip cookies. The percent of cookies that are oatmeal is_?

Answers

Answer:

40%

Step-by-step explanation:

12+13+5 = 30

oatmeal = 12/30 which is 4/10 or 40%

help me pleaseee QUICK I WILL GIVE SOMEONE BRAINLY

Answers

Answer:

B. 5626.9

Step-by-step explanation:

• volume of cylinder= pi(r)2h

• plug in the values into the equation

• pi(8)2(28)

pi=3.14 so 3.14(8)2(28)

• multiply all the values

• you get 5629. 73

• b is the closest the that answer since it says approximate

How can you determine whether two circles are congruent?

Answers

Answer:

If the diameter or radius of one circle is the same as another circle they are congruent.

What do you used to find perimeter

Answers

Answer:

Perimeter = 2 ( l + w )

if u r given for rectangle thats the formula

Step-by-step explanation:

To find the perimeter of a rectangle, add the lengths of the rectangle's four sides. If you have only the width and the height, then you can easily find all four sides (two sides are each equal to the height and the other two sides are equal to the width).

11. Max is designing a hot tub for a local spa.
He wants the hot tub to have a diameter of 89 inches, What is
the approximate area required for the installation of the hot tub?
(Use 3.14 for pi.)


NO PDF PLZ

Answers

Answer:

Area required for circular hot tube = 6,218 inch² (Approx.)

Step-by-step explanation:

Given:

Diameter of circular hot tube = 89 inches

Value of π = 3.14

Find:

Area required for circular hot tube

Computation:

Radius of hot tube = Diameter / 2

Radius of hot tube = 89 / 2 inches

Area required for circular hot tube = Area of circle

Area of circle = πr²

Area required for circular hot tube = πr²

Area required for circular hot tube = (3.14)(89/2)²

Area required for circular hot tube = (3.14)(7921 / 4)

Area required for circular hot tube = (3.14)(1,980.25)

Area required for circular hot tube = 6,217.985

Area required for circular hot tube = 6,218 inch² (Approx.)

which statements are true about the graph of function f?

f(x)= log x

Answers

Answer:

I believe the correct answer here is C!

Step-by-step explanation:

The option (A) is correct.

What is graphs of logarithmic function?

"The logarithmic function y = log b x is the inverse function of the exponential function y = b x. We can now proceed to graphing logarithmic functions by looking at the relationship between exponential and logarithmic functions".

For the given situation,

[tex]f(x)=logx[/tex]

Plot the graph of  [tex]f(x)=logx[/tex] .

From the graph shown below, the region of the graph lies in the domain of { x|0 < x < ∞ } and approaches as 0 as x decreases.

Hence we can conclude that the option (A) is correct.

https://brainly.com/question/14411373

#SPJ2

Write an expression with two terms that is equivalent to the expression shown.

4(2x + 11

Answers

Answer:

habla no espanyol

Step-by-step explanation:

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